The year is 2032. Ten years after a war with a race of genetically altered humans dubbed ‘rats’, special units of ‘rat catchers’ seek out and exterminate the last remaining hybrids. One of them is Zoe. She manages to evade detection using a false identity, and becomes a rat catcher herself. Any out of character slip on her part could expose Zoe for who she really is, and an encounter with her ‘rat’ father, with whom she lost contact during the war, could cost Zoe her life.